That’s the TIR I’m using on my TS10, it performs very good but the problem was the emitter i was using (519a), the beam pattern was very bad with it (square-ish beam, not much throw improvement over the stock TS10). Now I’m using the Yinding 6500K high CRI LED, and it gives the throw i was expecting with very nice tint and color reproduction, and it’s artifact free now, perfectly round hotspot. Hotspot temperature got down to about 5800K using the SP40a TIR.
Edit: Comparison between stock optics TS10 vs single:
Reference
Stock triple, CSP2323 6000K high CRI.
Single TIR, Yinding 5050 6500K high CRI.